Definitions

intelligent

[in-tel-i-juhnt] / ɪnˈtɛl ɪ dʒənt /

ADJECTIVE

very smart

Synonyms

STRONGEST

astute brainy bright brilliant creative imaginative inventive knowledgeable original perceptive rational resourceful smart well-informed wise

WEAK

able acute alert alive all there apt calculating capable clever comprehending deep discerning enlightened exceptional highbrow ingenious instructed keen knowing penetrating perspicacious profound quick quick-witted ready reasonable responsible sage sharp thinking together understanding whiz witty

Antonyms

STRONGEST

dark dull ignorant normal old stupid typical unaware uncreative uneducated unimaginative unintelligent uninventive unreasonable unresourceful worn

WEAK

foolish idiotic imbecile

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Selena's family said she was "an intelligent and cheeky girl who was adored and loved by everyone".

From BBC • Jun. 16, 2026

Houdon’s Franklin, though clearly an old man, looks amused and engaged, with a youthful gaze, but also highly intelligent and judicious, sociable but not entirely available, a bit enigmatic.

From The Wall Street Journal • Jun. 12, 2026

Emily Blunt and Josh O’Connor race around the Midwest trying to expose UFOs in a hectic adventure that lacks intelligent life.

From Los Angeles Times • Jun. 11, 2026

On Tuesday, a psychological expert testified that the defendant displayed no evidence of a psychotic disorder, that he was intelligent, "controls what he says" and shows "few emotions".

From Barron's • Jun. 4, 2026

“He’s obviously the most intelligent and handsome hamster you have.”

From "The World According to Humphrey" by Betty G. Birney

Vocabulary lists containing intelligent

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List 5

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